(19)

(11)

EP 2 721 164 A2

(12)

(88) Date of publication A3: 23.05.2013 (43) Date of publication: 23.04.2014 Bulletin 2014/17 (21) Application number: 12731825.1 (22) Date of filing: 15.06.2012

(51) International Patent Classification (IPC):  C12P 7/16(2006.01) C12P 7/18(2006.01) C12P 5/02(2006.01) (86) International application number: PCT/US2012/042757 (87) International publication number: WO 2012/174439 (20.12.2012 Gazette 2012/51)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 17.06.2011 US 201161498408 P (71) Applicant: Invista Technologies S.à.r.l. 9000 St. Gallen (CH)	(72) Inventors: PEARLMAN, Paul, S. Thornton, PA 19373-1049 (US) CHEN, Changlin Ingleby Barwick Cleveland TS17 5EE (GB) BOTES, Adriana, L. Rosedale East Cleveland YO18 8RL (GB) (74) Representative: White, Martin Paul  Whites IP Ltd 7 Berwick Road Bournemouth BH3 7BB Bournemouth BH3 7BB (GB)